Web-folding machine.



C. T. CUNDALL. WEB FOLDING MACHINE.

APPLICATION FILED NOV. 29,1913- 1,1 WM'M, Patented June 20,1916.

2 SHEETS-SHEET I.

c. T. CUNDALL. WEB FOLDING MACHINE.

APPLICATION FILED NOV. 29. 1913.

2 SHEETS-SHEET 2.

nesss= llll ll Tit T rib CONSTANT T. CUNDALL, OF STONINGTON,CONNECTICUT, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO 0. B. COT'IBELL &,SONS COMPANY, OF NEW YORK, N. Y., A CORPORATION or DELAWARE.

WEB-FOLDING MACHINE;

Specification of Letters latcnt.

Patented June 20, 1916.

Application filed November 29, 1913. Serial No. 803,735.

1 b all whom it may concern Be it known that I, Cons'r m'r T. CUN- DALL,a citizen of the United States, and resident of Stonington, in thecounty of New London and State of Connecticut, have invented a new anduseful Improvement in ob-Folding Machines, of which the following is aspecification.

The object of this invention is to provide manual means for controllingthe surface speed of one or more of the web feed rolls of the webfeeding mechanism so that all of the web sections may be driven at thedesired speeds to insure the proper association of the web sectionswithout interfering with the operation of the machine.

A practical embodiment of my invention is representedin the accompanyingdrawings, in which- Figure 1 is a section through so much of a webfolding machine as will give a clear understanding of the invention,Fig. 2 is a View in front elevation of the same, Fig. 8'

is an enlarged detail section showing the manual means for expandmg andcontracting the web feed roll to vary its surfacespeed, and Fig. 4 is adetail cross section taken in the plane of the line A-A of Fig. 3.

Two wide webs 1 are shown as passing over the slitting roll 2 where theyare separated into a plurality of superposed web sections by theslitters 3. The plurality of su-' perp'osed web sections are then passedaround the single turners 4 and as they leave the points of the saidturners the superposed web sections pass between the pairs of rolls 5,6. The superposed web sections then pass around a plurality of feedrolls 7 on their way to the pair of rolls 8, 9, where they areassociated. In the present instance I have shown two of theseintermediate feed rolls 7 acting upon each pair of superposed websections as it passes from the pair of rolls 5, 6, to the pair of rolls8, 9. A cross shaft 10 is driven from the vertical drive shaft 11through the bevel gears 12, 13.

Each pair of rolls 5, 6, is driven from the cross shaft 10 through thebevel gears 14:, 15, and intermeshing spur gears 16, 17.

The slitting roll 2 is driven from the shaft 10 through the train ofgears 18, 19, 20, 21,

F The means for driving the web feed rolls 7 for each pair of superposedweb sections is herein shown as the train of gears 28, 29, 30, 31, Iwill proceed to describe the structure of one of these feed rolls 7 andthe manual means for expanding and contracting the same for varying itssurface speed, it being understood that the other feed rolls 7 aresimilar in construction and operation.

The shaft of the feed roll 7 is denoted by 83, which shaft is mounted torotate in suitable bushings 84, 35, fixed against rotative movement inthe machine frame.

The feed roll itself comprises a cylindrical shell 36 dividedlongitudinally as shown at 37 to permit the expansion and contraction ofthe shell. This shell is provided with split contracting rings 38, 39,surrounding its ends.

End blocks 40, 41, are keyed to the shaft 33 to slide lengthwisethereof, which end blocks are provided with tapered'portions 4:2, 43,-respectively. These tapered portions enter the opposite ends of theshell 36. Manual means are provided for moving these'end blocks 40, 41,toward and away from each other for expanding and contracting the shell36, which means is shown herein as comprising yokes 44, l5, havingoppositely arranged pairs of shoes 46, &7, located in circumferentialgrooves 4:8, 49, in the end blocks 40, 41. These yokes have a screwthreaded engagement with the bushings 31 as shown at 50, 51, and arealso provided with gears 52, 53, which mesh with pinions 5 1, 55, fixedon a cross shaft 56 mounted in the machine frame. This shaft 56 isprovided with a suitable handle 57. The turning of the handle 57 in onedirection will force the end blocks l0, 11, toward each other andthereby expand the shell 36 of the roll, increasing the diameter of theroll and increasing its surface speed. By turning the handle 57 in theother direction, the end blocks4cO, 11, will be moved away from eachother permitting the shell 36 of the roll to contract and thus lessenthe diameter of the roll and thereby decrease its surface speed.

For supporting the shell on the shaft intermediate the ends of the shelland for keying the shell to the shaft, I provide a centrally arrangedinterior collar 58, diametrically through which collar and shaft a pin16 5 9 is passed, one end of which pin extends into the shell 36opposite the slit 37 and the other end of which pin projects into thesaid slit.-

1 It will be seen that the spring'contracting rings 38', 39, not on'lyserve to assist in the ycon'trac-tion ofthe shell 36 of the roll whenthe end blocks 40, 41, are moved outwardly away from each other,-butalso serve to reinforce the endsof the shell and prevent the distortionof the shell when the end blocks are moved inwardly toward each other.

7 'From the abovedescription, it will be seen that one or more of thefeed rolls may be adjusted to the desired surface speed withoutinterfering with the main drive of the machine and rolls, thus insuringthe proper driving effect upon the web section or sections to properlyadjust the sections by accelerating and retarding their speed so as tobring all of the web sections into exact'register at the assemblingrolls 8, 9.

While I have shown and described the feeding and slitting of two widewebs into a plurality of superposed'web sections, it is to be understoodthat the invention 'may be 7 used in connection with one or more widewebs and sections slit therefrom. What I claim is 1. Web 1 feedingmechanism including Y i meansffor feeding a a plurality of web sectlons,assoc ating means therefor, web feed 'rolls for each ;.of said"sections, and manual meansfor independently expanding the rolls tochange their respective surface speeds for insuringthe' proper feedingand association contracted'web feed rolls for 7 sectionsahd 'manualmeans for independa of the web sections.

2. Welo feeding mechanism means for feeding a plurality of tions,associating means therefor, normally ently expanding the rolls to changetheir respective surface speeds for insuring the Y proper feeding andassociation of the web sections.

'3. l/Veb feeding mechanism including meansfor feeding a plurality ofweb secmeans for feeding a plurality of web secv tions, associatingmeans therefor, longitudi- 'nally' divided web feed rolls for each ofsaid sections and manual means for independently expanding the rolls tochange theirre- 'spective surface speeds for insuring the proper feedingand association of the web sections. p

4. WVeb feeding mechanism including tions, associating means therefor,normally contracted longitudinallydivided web feed rolls for each ofsaid sections and manual 7 Copies or this patentmay be. obtained forincluding web sec-' each of said shaft having oppositely taperedportions engaging the ends of the shell and manual means for moving theend blocks in opposite directions for expanding the shell to change itssurface speed.

6. In web feeding mechanism, a web feed roll including a shaft, acylindrical shell divided longitudinally, means for supporting the shellon the shaft intermediate the ends of the shell and for keying the shellto the shaft, end blocks movable along the shaft having oppositelytapered portions engaging the ends of the shell, fixed bushings, yo esloosely engaging the end blocks having screw threaded engagements withsaid bushings and manual means for turning the yokes to move the endblocks in opposite directions for expanding the shell to change itssurface 7 speed.

7 In web feeding mechanism, a web feed roll including a shaft, acylindrical shell divided longitudinally, means for supporting the shellon the shaft intermediate the ends of the shell and for keying the shellto the shaft, end blocks movable along the shaft having oppositelytapered portions engaging the ends of the shell, fixed bushings, yokesloosely engaging the end blocks havscrew threaded engagement with thesaid bushings and a hand wheel geared to said yokes for turning them tomove the end blocks in opposite directions for expanding the shell tochange its surface speed.

8. Inweb feeding mechanism, a web feed roll including a cylindricalshell divided longitudinally, end blocks having oppositely taperedportions engaging the ends of the shell, split spring contracting ringssurflve cents each, by addressing the "Commissioner of latents,Wuhing'tol, D. G."

